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Low power small voltage source to charge high voltage storage
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raff5184:
Hi,
what is normally used (if it is even possible) to completely charge a storage such as a capacitor or supercapacitor that has say 5-6V or even 15V of maximum rating voltage if the charging source is a low DC power (4-5mW) and can't reach the 5V, but is a 1V or 2V source?
David Hess:
A boost switching regulator would commonly be used but several other switching regulator topologies are suitable also. There are dedicated "energy harvesting" ASICs intended for this application now.
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